package wenjian;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
public class Test01 {
    public static void main(String[] args) throws IOException {
        String data = "劳动节快乐";
        FileOutputStream outputStream=new FileOutputStream("1.txt");
        byte[] bytes=data.getBytes();

        outputStream.write(bytes);
        FileInputStream inputStream = new FileInputStream("1.txt");

        byte[] buffer=new byte[1024];
        StringBuilder conten=new StringBuilder();
        int length;
        while((length=inputStream.read(buffer))!=-1){
            conten.append(new String(buffer,0,length,StandardCharsets.UTF_8));
        }
        System.out.println(conten.toString());
    }
}
